No. 2 in B Minor

Recording by Frédéric Chopin.

Recording identifiers

ISRC
HKI199234710
CopyrightID (CopyrightChains transaction hash)
0x7dd2f9e86f7aa4edba09f10a0fac6f710e25d081719997588bc567c0d7571b09
Copyright registration time
2026-06-20T18:53:55+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:a5cea279347fd201fba878ac371094e04656d622b9edf487122d3c0ac82bf45c

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.